--- product_id: 494419065 title: "Ultegra Fc-R8100 Crankset Grey, 160Mm, 52-36T | bike-cranksets-and-accessories" brand: "shimano" price: "$810.31" currency: USD in_stock: true reviews_count: 1 category: "Shimano" url: https://www.desertcart.us/products/494419065-ultegra-fc-r8100-crankset-grey-160mm-52-36t-bike-cranksets store_origin: US region: United States of America --- # 160mm arm length 12-speed Hyperglide tech Hollowtech aluminum arm Ultegra Fc-R8100 Crankset Grey, 160Mm, 52-36T | bike-cranksets-and-accessories **Brand:** shimano **Price:** $810.31 **Availability:** ✅ In Stock ## Summary > ⚡ Shift into the fast lane with Ultegra’s cutting-edge crankset! ## Quick Answers - **What is this?** Ultegra Fc-R8100 Crankset Grey, 160Mm, 52-36T | bike-cranksets-and-accessories by shimano - **How much does it cost?** $810.31 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/494419065-ultegra-fc-r8100-crankset-grey-160mm-52-36t-bike-cranksets) ## Best For - shimano enthusiasts ## Why This Product - Trusted shimano brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact 160mm Arm Length:** Tailored for agile pedaling and efficient power transfer, the 160mm crank arm fits perfectly for riders seeking speed and control. - • **Precision 12-Speed Shifting:** Experience seamless gear transitions with Shimano’s latest Hyperglide technology, engineered for pro-level performance on every ride. - • **Versatile 52-36T Chainrings:** Strike the ideal balance between climbing torque and flat-road speed with the popular 52-36 tooth configuration, designed for diverse terrain mastery. - • **Lightweight Hollowtech Aluminum:** Optimized for strength and weight, the hollow aluminum arms deliver durability without the bulk—perfect for conquering hills and sprints alike. - • **Effortless Upgrade Compatibility:** Maintains Shimano’s 24mm bottom bracket standard for quick, hassle-free swaps from older 11-speed setups—get race-ready in no time. ## Overview The Shimano Ultegra FC-R8100 Crankset in sleek grey features a 12-speed Hyperglide drivetrain with hollowtech aluminum arms at 160mm length and 52-36T chainrings. Designed for road cyclists demanding lightweight durability and smooth shifting, it offers easy compatibility with existing Shimano bottom brackets and delivers a pro-level riding experience. ## Description 12-speeds of range and a host of hyperglide technologies comes standard on the Shimano Ultegra FC-R8100 Crankset. This new offering from Shimano continues the sleek look and gets us cruising down old loops and new roads. The 12-speeds of range is new to Shimano lineup and gets a quality crank to match. The 24mm shell is standard on Shimano and doesn't change with the new generation, allowing for easy swaps from our 11-speed groups. Review: crankset - Shipping was pretty quick less than 2 week turnaround. I upgraded from a Shimano 105 50/34 172mm arms to this Ultegra 52/36t 160 mm arms. You do have to make adjustments to your front derailleur if you go from a crank like mine to this one. You have to raise it up a little and make small adjustments. Big difference on the hills. Can feel it in the legs really good. The star plug for the left side crank arm runs a little short. I used my old one from my 105 crank arm which was like 1/2" longer than the one that comes with it. ## Features - Arm Material: Hollowtech aluminum - Arm Length: 160mm, 165mm, 172.5mm, 175mm - Chainring Sizes: 50-34t, 52-36t - Bolt Circle Diameter: 110 - Bolts: 4 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BCTXJJ5M | | Additional Features | Portable | | Age Range Description | Adult | | Best Sellers Rank | #318,025 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #301 in Bike Cranksets | | Bike Type | Road Bike | | Brand Name | SHIMANO | | Color | Grey | | Customer Reviews | 4.8 4.8 out of 5 stars (7) | | Included Components | Crankset | | Is Assembly Required | No | | Item Weight | 2.9 Pounds | | Manufacturer | Shimano | | Model Name | Ultegra FC-8100 12-Speed Crankset | | Model Number | Shimano | | Model Year | 2000 | | Number Of Speeds | 12 | | Power Source | Battery Powered | | Size | 160mm, 52-36T | | Specific Uses For Product | Crankset | | Style Name | Crankset | | Suspension Type | Dual | | UPC | 192790893938 | | Unit Count | 1.0 Count | | Warranty Description | Limited Warranty | | Wheel Size | 160 Inches | ## Product Details - **Age Range (Description):** Adult - **Bike Type:** Road Bike - **Brand:** SHIMANO - **Color:** Grey - **Included Components:** Crankset - **Number of Speeds:** 12 - **Size:** 160mm, 52-36T - **Special Feature:** Portable - **Suspension Type:** Dual - **Wheel Size:** 160 Inches ## Images ![Ultegra Fc-R8100 Crankset Grey, 160Mm, 52-36T | bike-cranksets-and-accessories - Image 1](https://m.media-amazon.com/images/I/614+6zN5fqL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ crankset *by D***E on June 21, 2025* Shipping was pretty quick less than 2 week turnaround. I upgraded from a Shimano 105 50/34 172mm arms to this Ultegra 52/36t 160 mm arms. You do have to make adjustments to your front derailleur if you go from a crank like mine to this one. You have to raise it up a little and make small adjustments. Big difference on the hills. Can feel it in the legs really good. The star plug for the left side crank arm runs a little short. I used my old one from my 105 crank arm which was like 1/2" longer than the one that comes with it. ## Frequently Bought Together - SHIMANO Ultegra Fc-R8100 Crankset Grey, 160Mm, 52-36T - SILCA Secret Chain Hot Melt Wax Chain Lubricant for Bicycles with Nano-Scale Tungsten Disulfide, 500 Grams --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/494419065-ultegra-fc-r8100-crankset-grey-160mm-52-36t-bike-cranksets](https://www.desertcart.us/products/494419065-ultegra-fc-r8100-crankset-grey-160mm-52-36t-bike-cranksets) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-14*